Heiko Carstens 80ddf5ce1c s390: always build relocatable kernel ...

Nathan Chancellor reported several link errors on s390 with
CONFIG_RELOCATABLE disabled, after binutils commit 906f69cf65da ("IBM
zSystems: Issue error for *DBL relocs on misaligned symbols"). The binutils
commit reveals potential miscompiles that might have happened already
before with linker script defined symbols at odd addresses.

A similar bug was recently fixed in the kernel with commit c9305b6c1f52
("s390: fix nospec table alignments").

See https://github.com/ClangBuiltLinux/linux/issues/1747 for an analysis
from Ulich Weigand.

Therefore always build a relocatable kernel to avoid this problem. There is
hardly any use-case for non-relocatable kernels, so this shouldn't be
controversial.

Link: https://github.com/ClangBuiltLinux/linux/issues/1747
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20221030182202.2062705-1-hca@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

2022-11-08 19:32:32 +01:00

..

.gitignore

s390/boot: get rid of startup archive

2022-05-06 20:45:14 +02:00

als.c

s390/facilities: move stfl information from lowcore to global data

2021-06-07 17:06:58 +02:00

boot.h

s390/boot: convert initial lowcore to C

2022-05-06 20:45:15 +02:00

clz_ctz.c

s390/boot: get rid of startup archive

2022-05-06 20:45:14 +02:00

cmdline.c

s390: move ipl block and cmd line handling to early boot phase

2018-10-09 11:21:14 +02:00

ctype.c

s390: move ipl block and cmd line handling to early boot phase

2018-10-09 11:21:14 +02:00

decompressor.c

s390/boot: get rid of startup archive

2022-05-06 20:45:14 +02:00

decompressor.h

s390/boot: get rid of startup archive

2022-05-06 20:45:14 +02:00

ebcdic.c

s390/decompressor: avoid reusing uncompressed image objects

2018-06-25 10:14:39 +02:00

head_kdump.S

s390/decompressor: correct some asm symbols annotations

2020-11-20 19:19:11 +01:00

head.S

s390/head: get rid of 31 bit leftovers

2022-05-18 13:31:07 +02:00

install.sh

kbuild: factor out the common installation code into scripts/install.sh

2022-05-11 21:45:53 +09:00

ipl_data.c

s390/boot: convert parmarea to C

2022-05-06 20:45:15 +02:00

ipl_parm.c

s390/boot: convert parmarea to C

2022-05-06 20:45:15 +02:00

ipl_report.c

s390/boot: introduce boot data 'initrd_data'

2021-07-27 09:39:15 +02:00

ipl_vmparm.c

s390: move ipl block and cmd line handling to early boot phase

2018-10-09 11:21:14 +02:00

kaslr.c

s390/boot: get rid of startup archive

2022-05-06 20:45:14 +02:00

machine_kexec_reloc.c

s390/kernel: build a relocatable kernel

2019-04-29 10:47:10 +02:00

Makefile

s390: always build relocatable kernel

2022-11-08 19:32:32 +01:00

mem_detect.c

s390/boot: get rid of startup archive

2022-05-06 20:45:14 +02:00

mem.S

s390/decompressor: reuse lib/mem.S for mem functions

2018-06-25 10:14:39 +02:00

pgm_check_info.c

s390: rename last_break to pgm_last_break

2021-10-26 15:21:28 +02:00

sclp_early_core.c

s390/boot: move sclp early buffer from fixed address in asm to C

2021-07-27 09:39:15 +02:00

startup.c

s390: always build relocatable kernel

2022-11-08 19:32:32 +01:00

string.c

kasan, x86, s390: update undef CONFIG_KASAN

2020-12-22 12:55:08 -08:00

uv.c

s390 updates for 5.20 merge window

2022-08-06 17:05:21 -07:00

uv.h

s390/boot: cleanup adjust_to_uv_max() function

2022-07-28 18:05:23 +02:00

version.c

kbuild: build init/built-in.a just once

2022-09-29 04:40:15 +09:00

vmlinux.lds.S

s390/boot: add secure boot trailer

2022-10-26 14:47:31 +02:00